I knocked all rust/loose paint off the firewall this afternoon and planned on trying RE for the first time. Some areas of the firewall that were a mess, I used a wire wheel and it brought areas down to bare metal, while other areas still had the original paint.
My question is can I go over the entire firewall (even over the original paint) with RE if I scuff the entire firewall first? Or do I need to get rid of the paint for RE to adhere?
Thanks
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